Can any one provide me simple example in camel with JAXB using spring XML? I searched on net but did not find anything.
I just want to create simple Student class with fields name, id and convert it into xml.
Not sure what in particular you're struggling with, but here are some snippets:
<util:map id="jaxbNamespacePrefixMap">
<!-- In my case, we dont want a prefix for our namespace; YMMV -->
<entry key="http://www.nmcourts.gov" value=""/>
</util:map>
<marshal>
<jaxb prettyPrint="true" contextPath="generated.gov.nmcourts.ecitation.shared.odyssey"
partClass="generated.gov.nmcourts.ecitation.shared.odyssey.NMCitationEFileBatch" partNamespace="EFileBatch"
namespacePrefixRef="jaxbNamespacePrefixMap"/>
</marshal>
<unmarshal>
<jaxb prettyPrint="true" contextPath="generated.gov.nmcourts.ecitation.shared.odyssey"
partClass="generated.gov.nmcourts.ecitation.shared.odyssey.NMCitationEFileBatch"
partNamespace="EFileBatch" namespacePrefixRef="jaxbNamespacePrefixMap" />
</unmarshal>
What do you need exactly?
http://camel.apache.org/jaxb shows perfectly well how to marshal to xml via spring.
Related
I want to use a SimpleRegistry to store properties (as global variables). The property is changed with setProperty in a route with a jms endpoint. The camel documentation changed last week and has many dead links, also the Registry page. I did not found any samples that describe the use of the simpleRegistry.
I used the camel-example-servlet-tomcat as base. I do not use Fuse or the patched camel wildfly, because is to huge for our simple module.
<beans .... >
.
.
.
<bean id="simpleRegistry" class="org.apache.camel.support.SimpleRegistry" />
<camelContext xmlns="http://camel.apache.org/schema/spring">
<propertyPlaceholder id="properties" location="ref:simpleRegistry" />
<route id="storeConfig">
<from id="myTopic" uri="jms:topic:myTopic?selector=Configuration %3D 'xyz'" />
<log id="printHeader2" message="Received header: ${headers}" />
<log id="logToken" message="Received token: ${headers[myToken]}" />
<setProperty id="setMyToken" name="myProperty">
<simple>${headers[myToken]}</simple>
</setProperty>
</route>
<route id="externalIncomingDataRoute">
<from uri="servlet:hello" />
<transform>
<simple>The Token is: {{myProperty}}</simple>
</transform>
</route>
</camelContext>
</beans>
With the camel context deined like above, I got a java.io.FileNotFoundException Properties simpleRegistry not found in registry.
When I use <propertyPlaceholder id="properties" location="classpath:test.properties" /> and create a test.properties file, everything works fine but I cannot change the property. The operation in the setProperty tag is ignored.
The reason why I need a global variable is, I send a dynamic configuration (the myToken) via a jms topic to the camel context. A single route should store this configuration globaly. If an other route is called via an rest component, this route need the token to make a choice.
Alternatively you can achieve the same result following the below approach which uses the PropertiesComponent
<bean id="applicationProperties" class="java.util.Properties"/>
<bean id="properties" class="org.apache.camel.component.properties.PropertiesComponent">
<property name="location" value="classpath:application.properties"/>
<property name="overrideProperties" ref="applicationProperties" />
</bean>
Define the property place holder in the camel context:
<propertyPlaceholder id="propertiesRef" location="ref:applicationProperties" />
Set a property as shown below :
<bean ref="applicationProperties" method="setProperty(token, 'Test'})" />
And to fetch the property : ${properties:token}
OK, there are multiple subjects in your question.
You write you want to use Camel SimpleRegistry, but you obviously have a Spring application.
If you got Spring available, the Camel Registry automatically uses the Spring bean registry. The Camel Registry is just a thin wrapper or provider interface that uses whenever possible an available registry of another framework.
The Camel SimpleRegistry is only used when nothing else is available. This is basically an in-memory registry based on a Map.
You want to set an application property with <setProperty>.
<setProperty> sets an Exchange property, NOT an application property. With this you can save values in the Exchange of a message.
You want to use "global variables".
You could perhaps use a Spring singleton bean that is a Map. You could then autowire it where you need it, it would be like an application wide available map.
However, think twice why you need this kind of variable. This could also be a symptom of a design problem.
I need to set the file name without extension in header. While searching I got the below blueprint/spring code snippet. I want to achieve the same through Java DSL. can any one help me?
<camel:route>
<camel:from uri="file://input/orders" />
<camel:setHeader headerName="FileNameWithoutExtension">
<camel:simple>${file:onlyname.noext}</camel:simple>
</camel:setHeader>
I found out. We have to follow the below syntax
.setHeader("FileNameWithoutExtension",simple("${file:onlyname.noext}"))
I've imagined, that setProperty change the header as well, and I don't know why.
<setProperty propertyName="A"><constant>AAA</constant></setProperty>
<log message="HA: ${headers.A}" />
<log message="PA: ${exchangeProperty[A]}" />
Both logs print AAA. Camel version 2.17.3, Spring version 4.3.2.RELEASE.
How should I use the setProperty?
As answered by Claus Ibsen:
This is working as Camel was designed with the header/property
expressions in the DSL.
A header lookup will fallback as property.
Source: Simple message header.XXX and exchange property.XXX the same?
I experience something rather strange and I would like to know if other people have experienced the same...
I am currently working on a project using jboss fuse (previously fuse esb) and we are using blueprint for our configuration files.
We use property place holders and have the following files under src/main/resources/OSGI-INF/blueprint:
blueprint.xml
properties.xml
In blueprint.xml we have something like this:
<bean id="myBean" class="com.test.MyClass">
<property name="prop1" value="${my.prop}" />
<∕bean>
Then in properties.xml I have this:
<cm:property-placeholder persistent-id="my.properties" update-strategy="reload">
<cm:default-properties>
<cm:property name="my.prop" value="true" />
</cm:default-properties>
</cm:property-placeholder>
And I obviously have a setter for prop1 (which is a String) in MyClass.
But what I see is that when I deploy this, prop1 is set to "${my.prop}" instead of "true", i.e the variable never gets replaced with its defined value!
But now if I call the properties file aaa_properties.xml, it works!!
Is this a bug in the blueprint container?
Did any one else experience the same behaviour?
Thanks for your feedback :)
JM.
I found some information about Blueprint Configuration in Fuse ESB
It states:
If you need to place your blueprint configuration files in a non-standard location (that is, somewhere other than OSGI-INF/blueprint/*.xml), you can specify a comma-separated list of alternative locations in the Bundle-Blueprint header in the manifest
For Example:
Bundle-Blueprint: lib/account.xml, security.bp, cnf/*.xml
I suggest, can you please give this a try, and specify your xml files here, naturally in the correct ordering.
I have tried to set a property on the body of a Java bean constituting the message in transit through a Camel route. I have tried various approaches e.g.
<route>
...
..
<transform>
<simple>${body.label} = ${property.label}</simple>
</transform>
...
..
</route>
in this particular case the ${body} is a Java bean with a setLabel(String label) method and the ${property.label} is set by other means in another route. In this example the result is not the desired (and I understand why), i.e. after the transform the body of the message is replaced with the ${body.label} = ${property.label} string.
My current work-around is to manually code a transformer as a Spring bean and set the label property of the Java bean in code but I like to find out if there is a simpler/smarter way to achieve this, preferably in XML DSL which is what I use?
Regards, Ola
I'm not sure if it's possible with simple, but you could do it using groovy:
<setBody>
<groovy>request.body.label = exchange.getProperty('label')
return request.body
</groovy>
</setBody>
Maybe it can help someone in the future:
As I know You can use standard Java approach with settters anf getters in body:
.split(body())
.setBody(simple("${body.setLogin('TEST')}"))
.end()
It works inside <split></split>. Maybe inside another blocks.